Door check and tightener.



PATENTED MAR; 19,]1907.

'N0.a47,9 09., Y

I E. UONKLIN.

DOOR. CHECK AND TIGHTBNER.

' APPLICATION FILED MAY 9, 1906.

V; ITNESsES INVENTOR -Nrrnn STATES EDWARDCONKI JIN, OF CHANNAHON, ILLINOIS.-

To all rd hom it may concern:

Be it known that I, EDWARD CoNKLIN', a

resident of Channahon, in the county of Will and State of Illinois, have invented cer tain new and useful Improvements in Door Checks and Tighteners; and I do hereby de clare the following to b a full, clean-and exact description of theinventiornsuch as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improved door check and tightencr, and'more particularly to improvements "upon the structure disclosed in Patent No. 589,418, granted to me September 7, 1897, the object of the invention being to simplify and improve the construction disclosed in said patent; and the invention consists in certain novel features of construction and combinations and ar rangements of parts, as will be more fully hereinafter described, and pointed out inthe claim.

In the accompanying drawings, Figure 1 is a view showing the application of my improvements with the door in the act of closing. Fig. 2 is a similar view showing the door closed; and Figs. 3, 4, and 5 are views of details of construction.

My improvements compr se two members A and B, the member A to be secured to a door-jamb or other fixed part and the member B to be secured to a door or other movable part. 4

The member A comprises a base-plate 1, perforated to receive screws or other securing devices to fix the member A to the doorjamb. The base 1 is made with a lug or extension 2, extending toward the door forming an extended bearing for the n' eluber to with stand the strain thereon during the opera tion of my improvements, as will be hereinafter explained.

An integral arm 4 proiects outwardly from the base 1 and is preferably of the shape shown and provided at its outer end with an integral pintle 5 to pivotally support a tripping-block 6 of peculiar construction and secured in position by a ring or collar 7, seated in an annular groove in the pintle 5. The block 6 is made with a bifurcated extension forming jaws 9 10, the outer jaw 9'strengthsued by a Web 8 and the jaws forming asemicircular recess to accommodate the plunger of member B. The block 6 is made with an enlargement 11, hazing an opening 12 therein to receive the cross-bar or journal Specification of Letters Patent.

Application filed May 9, 1906. Serial No. 316,043.

.serted and withdrawn from Patented March 1907.

13 of a plungei' 14, and theenlargemeiit the opening 12-is recessed, as shown at 15,, to

permit the cross-bar or journals 13 to inv r.

the opening 12. The plunger 14 is seated in one end of aYeoilcd spring 16, and the latter is seated in a socket 17 in base 1. be seen that when the tripping-block 6 is turned on its fulcrum the spring 16 will be first compressed, and then, as the outer end From this construction it'will I of the plunger-14 passes the fulcrum of the 9 block, the tension on the spring will-berelieved to turn the block the rest of its movement, and it is this expansion of the spring that forces the door or other movable member to its closed position, and a shoulder 18 is provided on the block 6 toengage arm 4 and limit the turning movementof'the its spring when the block is thrown back to its open or set position.

The member 8 comprises an elongated shell having perforated lugs to receive screws or other devices to secure the same to the door. A plunger 19 is mounted in bearings or openings in the ends ofthe shell, and a coiled spring 20 is located on the in the shell to force the plun er outward, and a lug 21 is provided on the rear end of the plunger outside the shell to engage shell and block by iii limit the outward movement of the plunger by the spring. The outer end of the plunger 19 is flattened and widened to give extended bearing contact faces to engage the jaws 9 and 10 and insure the perfect operation of the device. I

The operation of my improvements is as follows :Assuming the door to be open and in own in Fig. 1, the flat the act of closing, as sh and wide outer end of plunger 19 will engage jaw 1.0 and as the door moves will turn the tripping-block 6 until the lunger'14 passes the fulcrum of the block, when the spring 16 will expand and turn the block to bring the outer jaw 9 against plunger 19 and force the door tightly to its closed position. When the door is opened, the plunger 19, by its contact with jaw 9, will throw the tripping-block back to its open or set position, as will be readily understood.

A great many slight changes might be made in the general form and arrangement of the parts described without departing frommy invention, and hence I would have it'understood that I do not restrict myself to the precise details set forth, but consider myself at liberty to make such slight changes and ell ion. 5 fuii'y escnued m mvfintion what 0G1 check and ti A am with a springactua; unger sub, 0Q Em? attachment to '21 (1001' and ham.

broad flattened head at its upper and (:f n

plvo'tec; blockor lever, means for aim-562113.55

the ame: m a (loor'frame orbasmq sun &,

356 or iaver'i swing two jizws mi 0110 c 12-1522 565F311), formmg a recess T'recen 10d Ezswzad- 11 he plunger, a spring con- 1 .L with V V k m." lever normally m; 5 one side 01% in:-

1 1111 0:5 the. latter, and 2:.

shoulder on MR: bmts: or lui'er to limit its pivoml movenum 1 ill-ms ms: 5* wimreof I have signed this spam mien the presence of two subscrflr 13.9 witnesses.

mnvm'm QONKLIN; 

